Redox chemistry of [Fe2(CN)10]4−. Part I. Reaction with iodide |
| |
| Authors: | M Elena Pena J Ramon Leis Geoffrey Stedman |
| |
| Affiliation: | 1. Departamento de Quimica Fisica, Universidad de Santiago de Compostela, Santiago de Compostela, Spain
2. Chemistry Department, University of Wales at Swansea, Singleton Park, SA2 8PP, Swansea, UK
|
| |
| Abstract: | The iron(III) dimeric complex [Fe2(CN)10]4− is reduced to the iron(III)iron(II) species [Fe2(CN)10]5− by iodide ion, the equilibrium constant being strongly dependent upon the nature of the alkali metal cation, reduction being favoured in the sequence: Cs+>NH 4 + ≥K+>Na+>Li+. The reaction kinetics are autocatalytic in character, the catalytic species being the mixed valence dimer. The rates of reactions are also strongly catalysed by alkali metal cations, in the same sequence as for the equilibrium constants. The reaction mechanism involves the formation of I 2 − as a reactive intermediate which can be oxidised by both [Fe2(CN)10]4− and [Fe2(CN)10]5−. |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
